Finding the Fourth Proportional to 8,780.64, 12,117.20 and 4,801.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.64 : 12,117.20 = 4,801.83 : x
2. Step 2: Convert to fraction form
   8,780.64/12,117.20 = 4,801.83/x
3. Step 3: Cross multiply
   8,780.64x = 12,117.20 × 4,801.83
4. Step 4: Simplify right side
   8,780.64x = 58,184,710.47
5. Step 5: Solve for x
   x = 58,184,710.47/8,780.64
6. Step 6: Final answer
   x = 6,626.48